一本大道东京热一区无码_五月激情婷婷六月_日本亚洲男人中文字幕_国产大胆熟女精品免费视频_亚洲在av极品无码高清_欧美男男作爱gay www_中出内射免费视频网站_蜜柚在线观看免费高清_都市激情国产综合_伊人久久大香线蕉无码尤物

Welcome to the official website of Lianshui Jincheng Chemical Co., Ltd.!

PRODUCT CENTER

PRODUCT CENTER

1,4-dibromo-2,5-difluorobenzene

Product Type 　Halogenated hydrocarbon
Alias 　
CAS No. 　327-51-5
Molecular weight 　
Molecular formula 　
Structural formula